Ask The Rabbi!!

I have a question. In the Torah, it states "Don't boil a kid in it's mothers milk", What does this have to do with a cheese burger ?

Why can't Jews eat chicken and drink milk, chickens don't produce milk but eggs are parve ?

Also, why is the front end of the cow Kosher and not the back end, they both have blood cells and you can't drain 100% of the blood from animals ?

Animal sacrafices during second temple period, didn' t the levi's and Choeniam eat the whole animal, backend included ? I don't think they surgicaly removed the veins from the animal in order to make it Kosher. So what happens if you ate a vein from the front end of the animal ?